2,382 results match your criteria: "National University of México (UNAM)[Affiliation]"

Axillary crutches assist people with lower limb injuries but can lead to upper limb strain with extended use. Spring-loaded crutches offer a potential solution, yet they are rarely tested in clinical settings. This study developed spring-loaded crutches with an integrated force-measuring system to analyze gait dynamics.

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Childhood obesity increases the risk of developing metabolic diseases in adulthood, since environmental stimuli during critical windows of development can impact on adult metabolic health. Studies demonstrating the effect of prepubertal diet on adult metabolic disease risk are still limited. We hypothesized that a prepubertal control diet (CD) protects the adult metabolic phenotype from diet-induced obesity (DIO), while a high-fat diet (HFD) would predispose to adult metabolic alterations.

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Objective: To study the influence of bracket base meshes on shear bond strength and observe them using a scanning electron microscopy (SEM) before and after debonding.

Methods: Ninety brackets were divided into nine groups of 10 samples each: G1-Alexander, G2-Mini Sprint Brackets, G3-In-Ovation R CCO, G4-Gemini SL Self-Ligating Bracket, G5-Classic mini 2G Stylus, G6-Gemini Metal Brackets, G7-Clarity Advanced, G8-Crystall-Ize, and G9-Ceramic Series Flexx 2G. Groups G1 to G6 and G7 to G9 consisted of metallic and aesthetic brackets, respectively.

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This qualitative research study explores stakeholders' perspectives on the challenges of implementing Namibia's National School Health Policy (NSHP) in schools. The interview guide used for this study was specifically developed to address the research objectives and themes. A total of 20 stakeholders participated, including educators, nurses, principals, and health program administrators from three regions in Namibia.

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The objective of the present study was to optimize an enzymatic starch extraction process from cassava roots using a polyglacturonase (PGase) from a wild yeast strain (Wickerhanomyces anomalus). The supernatant of W. anomalus culture, with PGase activity, was used as source of enzyme (enzymatic extract, EE).

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Hepatoprotective effect of the Sechium HD-Victor hybrid extract in a model of liver damage induced by carbon tetrachloride in mice.

Biomed Pharmacother

January 2025

Hematopoiesis and Leukemia Laboratory, Research Unit on Cell Differentiation and Cancer, Faculty of High Studies Zaragoza, National Autonomous University of Mexico, Mexico City CP 09230, Mexico; Department of Biomedical Sciences, School of Medicine, Faculty of High Studies Zaragoza, National Autonomous University of Mexico, Mexico City CP 56410, Mexico. Electronic address:

Sechium spp., is a vegetable species renowned for its pharmacological properties, including hepatoprotective activity. This species can crossbreed with its wild relatives, leading to the creation of an HD-Victor hybrid with higher levels of flavonoids, cucurbitacins, and phenolic acids compared to the Sechium edule.

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Non-ionic surfactant self-assembly in calcium nitrate tetrahydrate and related salts.

Soft Matter

January 2025

School of Chemistry and University of Sydney Nano Institute, The University of Sydney, Sydney, NSW, 2006, Australia.

Self-assembly of amphiphilic molecules can take place in extremely concentrated salt solutions, such as inorganic molten salt hydrates or hydrous melts. The intermolecular interactions governing the organization of amphiphilic molecules under such extreme conditions are not yet fully understood. In this study, we investigated the specific effects of ions on the self-assembly of the non-ionic surfactant CH(OCHCH)OH (CE) under extreme salt concentrations, using calcium nitrate tetrahydrate as a reference.

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Corrigendum to "Model organisms for investigating the functional involvement of NRF2 in non-communicable diseases" [Redox Biol. 79 (2025) 103464].

Redox Biol

January 2025

Jacqui Wood Cancer Centre, Division of Cancer Research, School of Medicine, University of Dundee, Dundee, UK; Department of Pharmacology and Molecular Sciences and Department of Medicine, Johns Hopkins University School of Medicine, Baltimore, MD, USA.

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Background: Breast cancer is the most common cancer among women worldwide, impacting not only the patients but also their families and communities. vent. is a plant endemic to Mexico, traditionally used in Zapotec medicine for the treatment of cancer.

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Optical signatures of lattice strain in chemically doped colloidal quantum wells.

Nat Commun

January 2025

LUMINOUS! Centre of Excellence for Semiconductor Lighting and Displays, School of Electrical and Electronic Engineering, Nanyang Technological University, Singapore, Singapore.

Lattice strain plays a vital role in tailoring the optoelectronic performance of colloidal nanocrystals (NCs) with exotic geometries. Although optical identifications of lattice strain in irregular-shaped NCs or hetero-structured NCs have been well documented, less is known about optical signatures of the sparsely distributed lattice mismatch in chemically-doped NCs. Here, we show that coherent acoustic phonons (CAPs) following bandgap optical excitations in Cu-doped CdSe colloidal quantum wells (CQWs) offer a unique platform for indirectly measuring the dopant-induced lattice strain.

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Introduction: To evaluate the effectiveness of noninvasive positive pressure ventilation (NPPV) versus standard therapy in severe asthma exacerbations through meta-analysis.

Methods: Nine randomized controlled trials (344 patients) were analyzed from inception to August 2024. Primary outcomes included respiratory rate, forced expiratory volume in first second (FEV1), and oxygen saturation (SpO2).

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Unlabelled: LCN2 has an osteokine important for appetite regulation; in type 2 diabetes (T2D) it is not known whether appetite regulation mediated by LCN2 in the brain is altered. In this work, we focus on exploring the role of blocking LCN2 in metabolic health and appetite regulation within the central nervous system of mice with T2D.

Material And Methods: 4-week-old male C57BL/6 mice were used, divided into four experimental groups: intact, T2D, TD2/anti-LCN2, and T2D/IgG as isotype control.

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Interactions between contaminants and the trophic ecology of two seabirds in a coastal lagoon of the Gulf of California.

Ecotoxicology

January 2025

Unidad Académica Mazatlán, Instituto de Ciencias del Mar y Limnología, Universidad Nacional Autónoma de México, Mazatlán, Sinaloa, México.

Monitoring the dynamics of contaminants in ecosystems helps understand their potential effects. Seabirds have been used as biomonitors of marine ecosystems for this purpose. However, exposure and vulnerability to pollutants are understudied in tropical species, and the relationships between various pollutants and the trophic ecology of seabirds are poorly understood.

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Trigeminal neuralgia (TN) usually affects the maxillary and mandibular branches of the fifth cranial nerve. Although the condition is primarily unilateral, few cases of bilateral manifestation have been reported. TN is uncommon; however, it significantly affects patients' quality of life because the neuropathic pain worsens over time.

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and belong to acetic acid bacteria (AAB), associated with wine spoilage. The timely detection of AAB, thought essential for their control, is however challenging due to the difficulties of their isolation. Thus, it would be advantageous to detect them using molecular methods at all stages of winemaking and storage.

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Yerba mate (YM, ) is an economically important crop marketed for the elaboration of mate, the third-most widely consumed caffeine-containing infusion worldwide. Here, we report the first genome assembly of this species, which has a total length of 1.06 Gb and contains 53,390 protein-coding genes.

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Land use change threatens global biodiversity and compromises ecosystem functions, including pollination and food production. Reduced taxonomic α-diversity is often reported under land use change, yet the impacts could be different at larger spatial scales (i.e.

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Acenaphthylene-fused heteroarenes with a variety of five- and six-membered heterocycles such as thiophene, furan, benzofuran, pyrazole, pyridine and pyrimidine were synthesized via an efficient Pd-catalyzed reaction cascade in good to high yields (45-90%). This cascade involves an initial Suzuki-Miyaura cross-coupling reaction between 1,8-dihalonaphthalenes and heteroarylboronic acids or esters, followed by an intramolecular C-H arylation under the same conditions to yield the final heterocyclic fluoranthene analogues. The method was further employed to access polyoxygenated benzo[]fluoranthenes, which are all structurally relevant to benzo[]fluoranthene-based fungal natural products.

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The specific ion effect (SIE), the control of polymer solubility in aqueous solutions by the added ions, has been a phenomenon known for more than a century. The seemingly simple nature of the ion-polymer-water interactions can lead to complex behaviors, which have also been exploited in many applications in biochemistry, electrochemistry, and energy harvesting. Here, we show an emerging diversification of actuation behaviors in "salty" hydrogel and hydrogel-paper actuators.

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A smart probe for detection of sugar markers for applications in gastrointestinal barrier dysfunction.

Biosens Bioelectron

March 2025

Bio-Acoustic MEMS in Medicine (BAMM) Laboratory, Canary Center at Stanford, Department of Radiology, Stanford School of Medicine, Stanford University, Palo Alto, CA, 94304, USA. Electronic address:

Article Synopsis
  • Gastrointestinal (GI) barrier dysfunction is a critical early indicator of multiple complex diseases, but current testing methods for saccharide molecules used to assess this function are expensive and time-consuming.
  • A new one-component system utilizing a naphthyl-pyridine core and boronic acid receptor has been developed for the early detection of saccharide biomarkers like lactulose, which indicates GI barrier issues.
  • The innovative design incorporates a scalable 96-well format with gold nanoparticles and combines plasmonics and fluorescence for sensitive lactulose quantification, aiming to create an affordable and portable diagnostic tool for routine GI permeability testing.
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Article Synopsis
  • Diverse analytical techniques are needed to study microplastics (MPs) since current methods struggle to detect smaller sizes, particularly those under 5 μm.
  • The study introduces a new method called MicroMetaSense, which uses metal-enhanced fluorescence to detect a wide range of MPs at extremely low concentrations, achieving a sensitivity of 183-205 femtograms.
  • This approach is cost-effective, efficient, and significantly improves detection capabilities, marking a significant advancement in monitoring microplastics in both lab and environmental samples.
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sp. nov. (Fungi: Orbiliales) from Mexico: Predatory Activity and Nematocidal Activity of Its Liquid Culture Filtrates Against (Nematoda: Trichostrongylidae).

J Fungi (Basel)

December 2024

Laboratory of Helminthology, National Centre for Disciplinary Research in Animal Health and Innocuity (CENID-SAI), National Institute for Research in Forestry, Agriculture and Livestock (INIFAP-AGRICULTURA), Jiutepec 62550, Mexico.

During the isolation, identification, and assessment of nematode-trapping fungi (NTF) against nematodes, we discovered an unusual fungus in decaying wood from Morelos State, Mexico. This isolate exhibited some characteristics similar to those of the genus; however, we found that it did not match any previously reported species within this genus after conducting morphological and phylogenetic analyses using the ITS, TEF, and RPB2 regions. This new species displays conidiophores with two or three stems emerging from the same initial site and conidiophores with only a single stem and aerial thickened hyphae from which single conidiophores emerge, forming 3D adhesive nets.

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Mild cognitive impairment, dementia and osteoporosis are common diseases of ageing and, with the increasingly ageing global population, are increasing in prevalence. These conditions are closely associated, with shared risk factors, common underlying biological mechanisms and potential direct causal pathways. In this review, the epidemiological and mechanistic links between mild cognitive impairment, dementia and skeletal health are explored.

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This work presents strong evidence supporting the use of decellularized human iliac arteries combined with adipose tissue-derived stem cells (hASCs) as a promising alternative for vascular tissue engineering, opening the path to future treatments for peripheral artery disease (PAD). PAD is a progressive condition with high rates of amputation and mortality due to ischemic damage and limited graft options. Traditional synthetic grafts often fail due to poor integration, while autologous grafts may be unsuitable for patients with compromised vascular health.

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